US Patent 11110642 Multi-prong blow pin with integral air and cooling water channels

A dual or multi-prong blow pin having air channels and a water cooling manifold integrally formed in the blow mold pin. The pin is formed by 3D depositing a metal such as stainless steel, which permits the formation of a blow mold pin having an intricate shape with internal air and water channels. The use of 3D deposition allows the manufacture such a blow mold pin, which may be difficult or impossible to form using conventional casting and machining methods.